﻿namespace RialternativeSample.Client.Converters
{
    using System;
    using System.Globalization;
    using System.Windows;
    using System.Windows.Data;

    /// <summary>
    /// Convert a boolean value to a visibility value.
    /// </summary>
    public class BooleanToVisibilityConverter : IValueConverter
    {
        /// <summary>
        /// Modifies the source data before passing it to the target for display in the UI.
        /// </summary>
        /// <param name="value">The source data being passed to the target.</param>
        /// <param name="targetType">The <see cref="T:System.Type"/> of data expected by the target dependency property.</param>
        /// <param name="parameter">Optional parameter indicating if the conversion has to be inversed.</param>
        /// <param name="culture">The culture of the conversion.</param>
        /// <returns>
        /// The value to be passed to the target dependency property.
        /// </returns>
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            string inversion = parameter as string;
            if (inversion != null && inversion == "1")
            {
                return (bool)value ? Visibility.Collapsed : Visibility.Visible;
            }

            return (bool)value ? Visibility.Visible : Visibility.Collapsed;
        }

        /// <summary>
        /// Modifies the target data before passing it to the source object. This method is called only in <see cref="F:System.Windows.Data.BindingMode.TwoWay"/> bindings.
        /// </summary>
        /// <param name="value">The target data being passed to the source.</param>
        /// <param name="targetType">The <see cref="T:System.Type"/> of data expected by the source object.</param>
        /// <param name="parameter">An optional parameter to be used in the converter logic.</param>
        /// <param name="culture">The culture of the conversion.</param>
        /// <returns>
        /// The value to be passed to the source object.
        /// </returns>
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}
